 <template>
 <div>
    <!-- 面包屑导航区域 -->
  <el-breadcrumb separator-class="el-icon-arrow-right">
   <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
   <el-breadcrumb-item>用户管理</el-breadcrumb-item>
   <el-breadcrumb-item>用户列表</el-breadcrumb-item>
 </el-breadcrumb>
 <!-- 卡片视图区 -->
 <el-card>
   <!-- 搜索与添加区域 -->
   <el-row :gutter="20">
     <el-col :span="7">
       <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
         <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
       </el-input>
     </el-col>
     <el-col :span="4">
       <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
     </el-col>
   </el-row>
   <!-- 用户表区域 -->
   <el-table :data="userlist" border stripe>
     <el-table-column type="index"></el-table-column>
     <el-table-column label="姓名" prop="username"></el-table-column>
     <el-table-column label="邮箱" prop="email"></el-table-column>
     <el-table-column label="电话" prop="mobile"></el-table-column>
     <el-table-column label="角色" prop="role_name"></el-table-column>
     <el-table-column label="状态" prop="mg_state">
       <template slot-scope="scope">
         <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
       </template>
     </el-table-column>
     <el-table-column label="操作" width="180px">
       <template slot-scope="scope">
         <!-- 修改按钮 -->
         <el-button
           type="primary"
           icon="el-icon-edit"
           size="mini"
           @click="showEditDialog(scope.row.id)"
         ></el-button>
         <!-- 删除按钮 -->
         <el-button
           type="danger"
           icon="el-icon-delete"
           size="mini"
           @click="removeUserById(scope.row.id)"
         ></el-button>
         <!--  分配按钮-->
         <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
           <el-button
             type="warning"
             icon="el-icon-setting"
             size="mini"
             @click="setRole(scope.row)"
           ></el-button>
         </el-tooltip>
       </template>
     </el-table-column>
   </el-table>
   <!-- 分页区 -->
   <el-pagination
     @size-change="handleSizeChange"
     @current-change="handleCurrentChange"
     :current-page="queryInfo.pagenum"
     :page-sizes="[1, 2, 5, 10]"
     :page-size="queryInfo.pagesize"
     layout="total, sizes, prev, pager, next, jumper"
     :total="total"
   ></el-pagination>
 </el-card>
 <!-- 添加户的对话框 -->
 <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
   <!-- 内容主题区域 -->
   <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
     <el-form-item label="用户名" prop="username">
       <el-input v-model="addForm.username"></el-input>
     </el-form-item>
     <el-form-item label="密码" prop="password">
       <el-input v-model="addForm.password"></el-input>
     </el-form-item>
     <el-form-item label="邮箱" prop="email">
       <el-input v-model="addForm.email"></el-input>
     </el-form-item>
     <el-form-item label="手机" prop="mobile">
       <el-input v-model="addForm.mobile"></el-input>
     </el-form-item>
   </el-form>
   <!-- 这是底部区域 -->
   <span slot="footer" class="dialog-footer">
     <el-button @click="addDialogVisible = false">取 消</el-button>
     <el-button type="primary" @click="addUser">确 定</el-button>
   </span>
 </el-dialog>
 <!-- 修改用户的对话框 -->
 <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
   <el-form
     :model="editForm"
     status-icon
     :rules="editFormRules"
     ref="editFormRef"
     label-width="70px"
   >
     <el-form-item label="用户名">
       <el-input v-model="editForm.username" disabled></el-input>
     </el-form-item>
     <el-form-item label="邮箱" prop="email">
       <el-input v-model="editForm.email"></el-input>
     </el-form-item>
     <el-form-item label="手机" prop="mobile">
       <el-input v-model="editForm.mobile"></el-input>
     </el-form-item>
   </el-form>
   <span slot="footer" class="dialog-footer">
       <el-button @click="editDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
   </el-dialog>
    <!-- 分配角色的对话框 -->
   <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <div>
        <p>当前的用户:{{userInfo.username}}</p>
        <p>当前的角色:{{userInfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="value" placeholder="请选择">
            <el-option
              v-for="item in options"
              :key="item.value"
              :label="item.label"
              :value="item.value"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>
 </div>
 </template>
 <script>
 export default {
data() {
   // 验证邮箱的规则
  var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
     if (regEmail.test(value)) {
        return cb();
     }
      cb(new Error("请输入合法的邮箱"));
    };
   // 验证手机号的规则
  var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
     if (regMobile.test(value)) {
        return cb();
    }
      cb(new Error("请输入合法的手机号"));
    };

   return {
    // 获取用户列表的参数对象
     queryInfo: {
        query: "",
       // 当前的页数
       pagenum: 1,
        // 当前每页显示多少数据
       pagesize: 2
     },
     userlist: [],
    total: 0,      addDialogVisible: false,
     addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
     },
    addFormRules: {
      username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
        {
          min: 3,
          max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigge: "blur"
        }
       ],
      password: [
          { required: true, message: "请输入密码", trigger: "blur" },
        {
          min: 6,
           max: 15,
            message: "用户名的长度在6~15个字符之间",
            trigge: "blur"
         }
       ],
       email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
      ],
      mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
      ]
    },
      // 修改控制用户对话框的显示与隐藏
     editDialogVisible: false,
      // 查询到的用户信息
     editForm: {},
    // 修改表单的验证规则对象
     editFormRules: {
      email: [
         { required: true, message: "请输入用户邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
       ],
       mobile: [
          { required: true, message: "请输入用户手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
       ]
     },
     // 控制分配角色对话框的显示与隐藏
    setRoleDialogVisible: false,
      //需要被分配角色的用户
      userInfo() {},
     // 所有角色的数据列表
      rolseList: []
   };
},
 created() {
    this.getUserList();  
    },
 methods: {
   async getUserList() {
      const { data: res } = await this.$http.get("users", {
      params: this.queryInfo
      });
    if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
     }
      this.userlist = res.data.users;
      this.total = res.data.total;
  },
    // 监听改变事件
  handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();    },
    // 监听页码值改变的事件
  handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
   },
    // 监听switch 开关状态的改变
   async userStateChanged(userinfo) {
      console.log(userinfo);
    const { data: res } = await this.$http.put(
      `users/${userinfo.id}/state/${userinfo.mg_state}`
     );
    if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败");
    }
      this.$message.success("更新用户状态成功");
   },
    // 监听添加用户对话框的关闭
   addDialogClosed() {
      this.$refs.addFormRef.resetFields();
   },
    // 点击按钮 添加新用户
   addUser() {
    this.$refs.addFormRef.validate(async valid => {
        if (!valid) return;
      // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
       if (res.meta.status !== 201) {
          this.$message.error("添加用户失败");
       }
       this.$message.success("添加用户成功");
       // 隐藏添加用户的对话框
        this.addDialogVisible = false;
       // 重新获取用户列表数据
        this.getUserList();
      });
  },
   // 展示编辑用户的对话框
  async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
    if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败");
     }
      this.editForm = res.data;
      this.editDialogVisible = true;
   },
    // 监听修改用户对话框的关闭事件
   editDialogClosed() {
      this.$refs.editFormRef.resetFields();
  },
    // 修改用户提交
  editUserInfo() {
    this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
      // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败!");
       }

        //关闭对话框
        this.editDialogVisible = false;
        //刷新数据列表
        this.getUserList();
        //提示修改成功
        this.$message.success("更新用户信息成功");
      });
   },
    // 删除对应的用户
   async removeUserById(id) {
      // 弹框询问是否删除
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      // 如果用户确认删除,则返回字符串 confirm
      // 如果用户取消了删除,则返回值为字符串 cancel
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("users/" + id);
     if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
     }
      this.$message.success("删除用户成功");
      this.getUserList();
   },
    // 展示分配的对话框
  async setRole(userInfo) {
      this.userInfo = userInfo;
      // 在展示对话框之前获取所有角色列表
      const { data: res } = await this.$http.get("roles");
     if (res.meta.status !== 200) {
      return this.$message.error("获取角色列表失败");
    }
      this.rolseList = res.data;
      this.setRoleDialogVisible = true;
  }
 }
};
 </script>
<style lang="less" scoped>
</style>